July 21, 2017 9:00 am
This summer, a Silicon Valley tech company will have millions of machine-raised, bacteria-infected mosquitoes packed into windowless white vans, driven inland and released into the wild — or, at least, the streets of Fresno, Calif. And, yes, Fresno County officials are encouraging this. It’s all part of the “Debug Fresno” project, which aims to cut down on the number of Aedes aegypti mosquitoes, an unwelcome invasive species that arrived in California’s Central Valley in 2013.
April 26, 2017 12:30 pm
Overcoming engineering, biology, and technology obstacles, a team of researchers has crafted what may be the best artificial womb yet: a fluid-filled bag in which lambs born early can live for up to 4 weeks, before being ushered into the outside world. Although others have designed similar systems that are still in animal testing, this one is notable for its stripped-down simplicity.
April 21, 2017 9:00 am
Blood from younger humans may have similar rejuvenating effects on older animals as blood from young mice.
April 13, 2017 9:00 am
The US Food and Drug Administration (FDA) has started testing whether livers-on-a-chip — miniature ‘organs’ engineered to mimic biological functions — can reliably model human reactions to food and foodborne illnesses. The experiments will help the agency to determine whether companies can substitute chip data for animal data when applying for approval of a new compound, such as a food additive, that could prove toxic. It is the first time a regulatory agency anywhere in the world has pursued organs-on-chips as an alternative to animal testing.
April 7, 2017 9:00 am
The Donald Trump administration appears to have reversed its decision to remove from public sight the results of past government inspections of animal research facilities. But getting hold of new inspection reports is proving to be another matter. An animal welfare researcher has found that only four reports have been posted during the first quarter of 2017.
March 27, 2017 9:00 am
Even if you aren’t elderly, your body is home to agents of senility—frail and damaged cells that age us and promote disease. Now, researchers have developed a molecule that selectively destroys these so-called senescent cells. The compound makes old mice act and appear more youthful, providing hope that it may do the same for us.
February 7, 2017 9:00 am
The U.S. Department of Agriculture (USDA) today removed public access to tens of thousands of reports that document the numbers of animals kept by research labs, companies, zoos, circuses, and animal transporters—and whether those animals are being treated humanely under the Animal Welfare Act. Henceforth, those wanting access to the information will need to file a Freedom of Information Act request.
February 2, 2017 9:00 am
By studying the insects under more-natural conditions, scientists hope to better understand how to eradicate them — and malaria — using an emerging genetic-engineering technology called gene drives. The technique can quickly disseminate genetic modifications in wild populations through an organism’s offspring, prompting some activists to call for it to be shelved. Yet gene drives might not be as effective as activists think. Recent research has identified a major hurdle to using them to eliminate diseases and vanquish invasive pests: evolution.
January 19, 2017 9:00 am
Stem cells: The key to boosting bone healing in diabetes
December 8, 2016 9:00 am
The goal is to create pig islets that the human immune system won’t recognize as foreign, so they can be transplanted into people.